3.Flexible composition: Doors and windows could be install at any position, separate wall could be built at any transverse axis.

4.Waterproof: Waterproof structure, there is no other waterproof processing.

5.Longevity: Steel materials has been stainless processing, its usage is over 10 years.

6.Environmental: Professional design, easy install, recycle using, no construction craps. Its cost is much more lower than other materials.Various styles: Standard component, long and wide use (1K=1820mm) as unit. The transverse distance is mK+160,portrait distance is nK+160.

7.Extensive application: It is widely used in road, railway, and other wild temporary house, also in government planning ,business and others, such as office, headquarters, shop, dormitory, park, school, hospital, exhibition, and gas station.